Charging Control Apparatus Voltage Conversion for Battery Safety
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Solution Overview
Problem
Existing vehicle charging devices cannot fully utilize their charging capabilities, leading to prolonged charging times due to limitations in output voltage and current, which restricts the power supplied to batteries during constant-current (CC) and constant-voltage (CV) charging modes.
Innovation Solution
A charging control apparatus that requests the external power source to output supply power with a constant voltage and current within specific ranges, allowing for voltage conversion to match the battery's allowable charging-voltage and current ranges, thereby increasing the power level delivered to the battery for faster charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the external power source outputs supply power with constant voltage and current within specific ranges, then the charging time is reduced, but the battery may be subjected to overcurrent or overcharging risks
Solution Approach 1:
The patent introduces a charging control apparatus as an intermediary between the external power source and the battery. This apparatus includes a voltage conversion instructor that converts the constant voltage and current output from the power source into variable voltage and current that adapts to the battery's charging characteristics, thereby enabling fast charging while preventing overcurrent and overcharging through controlled conversion
Solution Approach 2:
The patent changes the voltage and current parameters dynamically during the charging process. The voltage conversion instructor adjusts the output voltage and current based on the battery's state, transitioning between different charging stages (constant current stage, constant voltage stage, and floating charge stage) to optimize charging speed while ensuring battery safety
2Productivity
If the supply power voltage and current are increased to improve charging speed, then the charging efficiency is improved, but the complexity of voltage conversion control increases
Solution Approach 1:
The patent implements dynamic voltage and current control through the voltage conversion instructor, which continuously adjusts the conversion parameters based on real-time battery state feedback. The system transitions smoothly between different charging stages (CC, CV, and floating charge), optimizing charging efficiency while managing control complexity through adaptive rather than static control
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables shorter charging times while preventing overcurrent and overcharging, ensuring the battery is charged efficiently and safely within its designated power limits.
Implementation Method 1
a voltage conversion device 40, and a voltage conversion instructor 51. The voltage conversion instructor 51 instructs the voltage conversion device 40 to perform voltage conversion of the supply power from the external power source
Data Source
AI summary
In a charging control apparatus, a supply power requestor requests an external power source to output supply power having a constant voltage and a constant current. A voltage conversion instructor instructs a voltage conversion device to perform voltage conversion of the supply power from the external power source such that converted supply power has a charging voltage and a charging current that are respectively within allowable charging-voltage range and allowable charging-current range. The voltage conversion instructor instructs the voltage conversion device to output the converted supply power to the power storage to thereby charge the power storage.